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Accès ouvert déclaré 2023 article

Tests of C P symmetry in entangled Ξ 0 − Ξ ¯ 0 pairs

45Citations signalées, ce qui n’est pas une note de qualité
87Institutions déclarées
17Pays d’affiliation déclarés

Rattachement africain : cn, ru, se, de, it, pl, mn, us, tr, kr, gb, th, pk, cl, nl, in, cy. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

The J/ψ→Ξ0Ξ¯0 process and subsequent decays are investigated using (10087±44)×106 J/ψ events collected at the BESIII experiment. The decay parameters of Ξ0 and Ξ¯0 are simultaneously measured to be αΞ=-0.3750±0.0034±0.0016, α¯Ξ=0.3790±0.0034±0.0021, φΞ=0.0051±0.0096±0.0018 rad, φ¯Ξ=-0.0053±0.0097±0.0019 rad with unprecedented accuracies, where the first and the second uncertainties are statistical and systematic, respectively. The most precise values for CP asymmetry observables of Ξ0 decay are obtained to be ACPΞ=(-5.4±6.5±3.1)×10-3 and ΔφCPΞ=(-0.1±6.9±0.9)×10-3 rad. For the first time, the weak and strong phase differences are determined to be ζP-ζS=(0.0±1.7±0.2)×10-2 rad and δP-δS=(-1.3±1.7±0.4)×10-2 rad, which are the most precise results for any weakly decaying baryon. These results will play important roles in the studies of the CP violations and polarizations for the strange, charmed, and beauty baryons.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Tests of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>C</mml:mi> <mml:mi>P</mml:mi> </mml:math> symmetry in entangled <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:mo>−</mml:mo> <mml:msup> <mml:mover accent="true"> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mo stretchy="false">¯</mml:mo> </mml:mover> <mml:mn>0</mml:mn> </mml:msup> </mml:math> pairs
Date Crossref
23/08/2023
Éditeur
American Physical Society (APS)
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Institute of High Energy PhysicsSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUppsala UniversityZhengzhou UniversityJohannes Gutenberg University MainzUniversity of TurinLiaoning Normal UniversityUniversity of Science and Technology of ChinaSoutheast UniversityJoint Institute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di FerraraPeking UniversityNational Centre for Nuclear ResearchInstitute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiCarnegie Mellon UniversityUniversity of MünsterWuhan UniversityUniversity of Chinese Academy of SciencesIstinye UniversityXinyang Normal UniversityNankai UniversitySoochow UniversityNanjing UniversityTsinghua UniversityInstitute of Modern PhysicsJilin UniversityHunan UniversityChung-Ang UniversityRuhr University BochumShandong UniversityYunnan UniversityHelmholtz Institute MainzUniversity of JinanLiaoning UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Sun Yat-sen UniversityUniversity of OxfordUniversity of FerraraUniversity of ManchesterGSI Helmholtz Centre for Heavy Ion ResearchGuangxi UniversityHenan University of TechnologyNanjing Normal UniversityShandong Normal UniversityFudan UniversityHenan Normal UniversityUniversity of Hawaiʻi at MānoaUniversity of Hawaii SystemSuranaree University of TechnologySouth China Normal UniversityUniversity of the PunjabIndiana University BloomingtonHangzhou Normal UniversityHuangshan UniversityUniversity of TarapacáUniversity of GroningenChina University of GeosciencesJustus-Liebig-Universität GießenIndian Institute of Technology MadrasQufu Normal UniversityBeijing Institute of Petrochemical TechnologyLanzhou UniversitySichuan UniversityGuangxi Normal UniversityShanxi UniversityCentral China Normal UniversityHenan University of Science and TechnologyUniversity of South ChinaCentral South UniversityZhejiang UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaCOMSATS University IslamabadUniversity of PerugiaHunan Normal UniversityShanxi Normal UniversityNear East UniversityNorth China Electric Power UniversityHebei UniversityUniversity of Science and Technology LiaoningInner Mongolia UniversityYantai UniversityShanghai Jiao Tong UniversityChina Center of Advanced Science and TechnologyBeihang UniversityHenan University

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsNeutrino Physics Research

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